Difficulties in loading xib on ios

Difficulties in loading xib on ios

Storyboard, I personally think it is a good thing, but everything is always messy. Personal preferences: Pull complicated local controls (such as custom collectionviewcell) in the xib file.

There were a lot of pitfalls in the development process, but I still remember that the effect of setting rounded corners for parts (such as buttons) in xib is incorrect; the size of loaded xib cannot be resize.

The first problem is the code for setting the rounded corner:

 

view.layer.cornerRadius = view.frame.size.height / 2;

 

When autolayout is used, pay attention to the calling points: (because autolayout recalculates the frame, it is correct to call the frame of the Child control here)

 

 

- (void)viewDidLayoutSubviews；

 

Okay. What if xib? In the following function, write the effect of the Child control you want to achieve.

 

 

－layoutSubviews;

 

The owner of the xib calls the following functions. The following functions start with layoutSubviews.

 

 

[xib layoutIfNeeded]

----------- Gorgeous split line ----------------

 

The second problem: You have set the size of the xib, but the page shows the size of the xib. Swollen.

 

- (void)awakeFromNib {    [super awakeFromNib];    //solve UICollectionViewCell subviews do not resize    self.contentView.autoresizingMask =        //UIViewAutoresizingFlexibleLeftMargin |        UIViewAutoresizingFlexibleWidth |        //UIViewAutoresizingFlexibleRightMargin |        //UIViewAutoresizingFlexibleTopMargin |        UIViewAutoresizingFlexibleHeight        //UIViewAutoresizingFlexibleBottomMargin    ;    self.contentView.translatesAutoresizingMaskIntoConstraints = YES;｝